Bicycle-pump.



No. 700,84l. Patented May 27, I902.

Y E. F. SMITH.

BICYCLE PUMP.

(Application filed Sept. 9. 1901.)

2 smear-sheer (No Model.)

wiwwozo Nu. 700,84l. Patented May 27, I902.

. E. F. SMITH.

' BICYCLE PUMP. 7

(Application filed Sept. 9, 1901.!

2 Sheets-Sheet 2.

(Nb Model.)

vwemboz I qwmwm UNITED STATES PATENT OFFICE.

EUGENE F. SMITH, OF STOCKTON, CALIFORNIA.

BICYCLE-PUMP.

Application filed September 9, 1901- $eria1No. 74,781. (No model.)

To all whom, it may concern:

Be it known that I, EUGENE F. SMITH, a citizen of the United States, residing at Stockton, in the county of San Joaquin and State of California, have invented certain new and useful Improvements in Bicycle-Pumps; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it ap- 1o pertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to certain improvements in bicycle-pumps; and my object is to furnish apump which will be operative, cheap to construct, handy for use, and effective in all its functions.

My object also is to produce a pump which.

will obviate the necessity of carrying a tooluse when required.

box for the accommodation of any of its parts.

This I accomplish by the peculiar construction, novel combination, and adaptation of parts hereinafter described, and particularly pointed out in the claims hereunto annexed,

reference being had to the accompanying drawings for a better comprehension hereof,

in which- Figure 1 is a side elevation of a bicycle having my improved pump in position thereon. Fig. 2 is a longitudinal section of the frametube which forms the pump-barrel and its attendant parts. Fig. 3 is a side view of thesaddle -post with the plunger-retainer attached. Fig. l is a top'view of the saddlepost with the plunger -retainer in section, showing the plug in position. Fig. 5 is a top or end view of the hose, showing the method of attaching same to the plunger-rod. "Fig. 6 is a side view of the same, showing the method of attaching the spring to the hose. Fig. 7 is a side view of the plunger-retainer.- Fig. 8 is a side View of the top end of the plunger, showing the dust-shield.

Similar figures of reference indicate corresponding parts in the several views.

My improved bicycle-pump I arrange in the frame of the bicycle, so as to present a neat and compact appearance and be ready for The central upright tube 1 of the frame 2 is rendered smooth within end may be applied .shown in Figs. 2 and 4,

1 will be shown.

is attached to the lower end the same and of equal diameter its entire length. The lower end has a closure 3, rigidly and tightly inserted in the lower end of said tube 1, rendering the same air-tight, and thus forming the pump cylinder or barrel. Near the lower end of said tube 1 an opening is provided, into whicha nipple 4: is inserted, on which one end of the usual hose 5 may be secured in the usual manner, and the other to the tire-valve in the usual way. The saddle-post 6 I preferably construct of a straight piece of tubing of the required length and close the upper end, as by inserting a block 7 and securing the same in position. Said saddle-post 6 may be inserted into the top end of the tube 1 and secured in the usual manner. The block 7 has two openings 8 and 9 in the same, as shown in Fig. 4, for the purposes as I introduce a cap 10 over the top end of the saddle p'ost 6,which said cap is of the form substantially as shown in Figs. 2, 3, 7, having two opposite sides flattened at the top, forming a slot for the purpose presently shown. The flattened sides 11 have each a spring 12, of the form shown in Fig. 7, rigidly attached at one end to said sides 11 of the cap 10, the free ends of said springs being adapted to extend upward from said cap. A horizontal arm 13 has one end formed so as to encircle the base of the cap 10, as shown in Fig. 3, and the same is secured thereto by being clamped thereon by means of a bolt for that purpose, which also maintains the cap 10 in position on the top of the saddle-post 6. The saddle may be attached in any suitable -manner to the arm 13.

- I provide a plunger 14, constructed in the manner usual for air-pump plungers, which of a plunger-rod 15, which projects upward through the small opening 8 in the block 7 and is formed into a suitable handle 16, which, while in use projects upward through an opening in the center of the saddle.'17. Immediately beneath the said handle a shield 18, convex on its lower surface, is attached-and adapted to rest on the cap 10 between the springs 12, which embrace and retain the same in said position. The rod 15 has a circular slot 20 cut in the same for the accommodation of a spring-clamp 19, which is adapted to engage the same. Said clamp 19 may be composed of spring-wire and is adapted to be rigidly attached to one end of the hose 5, similar in construction and function to those now in use.

The mode of operating my improved bicycle-pump is as followszThe tube 1 is first bored out smooth its entire length and then the lower end is closed air-tight by the closure 3, which is rigidly attached in the position shown. The nipple 4 is placed in position in the side of the tube 1. The plunger-rod 15 is then introduced into the opening 8 in the block 7, having first placed the cap 10 on the top end of the saddle-post 6, and the plunger 14 is secured rigidly to the lower end of the rod 15. The plunger may then be introduced into the tube or pump barrel 1 and the saddle-post 6 adjusted in the top end of the tube 1 and secured therein in the usual manner. The cap 10 is loosely inserted on the saddle-post, so as to be easily removed at will. The arm 13 is then adjusted over the cap 10 and secured by a bolt, and the saddle is adjusted on the arm 13 in the usual manner. When not in use, the hose 5 has one end inserted in the opening 9 in the block 7 and the other end is secured to the plungerrod 15 by means of the spring-clamp 19, which embraces the same at the groove 20. As the rod 15 is depressed into the tube 1 the hose 5 is also carried into said tube 1 through the-opening 9, and the springs 12 engage the edges of the shield 18, thereby maintaining said shield tightly against the top or opening of the cap 10 and also maintaining the plunger and rod in rigid position. As will be seen, no dust or other foreign matter can find its Way into the pump when thus closed, and the hose is entirelyconcealed from View. When it is desired to use the pump, the handle 16 is grasped and the shield 18 is withdrawn from between the springs 12,,

which yield to a slight pressure, and the said handle, rod 15, and the hose 5 are raised, which is made possible by reason of the hole or slot usually found in bicycle-saddles, and the hose removed and placed on the tube or nipple 4, and the tire-nipple and the pump are then operated in precisely the same manner as other air-pumps. When the tire or other receptacle is sufficiently inflated, the hose is then removed and the clamp 19 attached to the rod 15 and replaced into the tube 1, and v the operation is repeated, as desired.

The advantages of my improved pump are that the necessity of carrying a tool box or bag is obviated, the pump and all its parts are concealed from View, it is compact, easily operated and repaired, efiective in its opera tion, and ready for use at all times when required.

I am well aware that air-pumps have been constructed inthe frame of bicycles, and therefore I do not claim that feature broadly; but

What I do claim as new, and desire to secure by Letters Patent, is

1. In a bicycle-pump of the class described, the combination: a frame -tube formed to compose the pump barrel or body and having its lower end closed, a nipple to receive the hose, a saddle-post having its top end closed with two small openings arranged therein, and adjustably secured in the top end of the pump-barrel, a plunger-rod inserted into one of said openings and having a suitable plun ger attached thereto, a suitable clamp rigidly attached to the hose and adapted to engage the plunger-rod and protrude into the opening 9 and the arm 13 attached to said saddlepost, all arranged and operating substantially as shown and described and for the purposes set forth herein.

2. In a bicycle-pump, the combination with a suitable pump-barrel formed in the frame and provided with a suitable plunger and plunger-rod of the saddle-post 6 inserted in the top of the pump-barrel and having the top end all closed but the openings 8 and 9, the hosesecnred to said plunger-rod by the springclamp 19 and introduced into the opening 9, the cap 10 seated over the end of the said saddle-post 6 and having the sides 11 flattened, the springs 12 secured to the sides 11, the shield 18 rigidly attached to the plunger-rod and adapted to engage with the springs 12, all arranged and operating substantially as shownand described and for the purposes specified.

In testimony whereof I affix my signature in presence of two witnesses.

EUGENE F. SMITH.

Witnesses:

M. HAYNES, JOSHUA B. WEBSTER. 

